diff options
Diffstat (limited to 'Documentation/devicetree/bindings/hwmon')
8 files changed, 328 insertions, 76 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml b/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml new file mode 100644 index 000000000000..2a9822075b36 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/adi,adm1177.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + - Beniamin Bia <beniamin.bia@analog.com> + +description: | + Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor + https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf + +properties: + compatible: + enum: + - adi,adm1177 + + reg: + maxItems: 1 + + avcc-supply: + description: + Phandle to the Avcc power supply + + shunt-resistor-micro-ohms: + description: + The value of curent sense resistor in microohms. If not provided, + the current reading and overcurrent alert is disabled. + + adi,shutdown-threshold-microamp: + description: + Specifies the current level at which an over current alert occurs. + If not provided, the overcurrent alert is configured to max ADC range + based on shunt-resistor-micro-ohms. + + adi,vrange-high-enable: + description: + Specifies which internal voltage divider to be used. A 1 selects + a 7:2 voltage divider while a 0 selects a 14:1 voltage divider. + type: boolean + +required: + - compatible + - reg + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + pwmon@5a { + compatible = "adi,adm1177"; + reg = <0x5a>; + shunt-resistor-micro-ohms = <50000>; /* 50 mOhm */ + adi,shutdown-threshold-microamp = <1059000>; /* 1.059 A */ + adi,vrange-high-enable; + }; + }; +... diff --git a/Documentation/devicetree/bindings/hwmon/adi,ltc2947.yaml b/Documentation/devicetree/bindings/hwmon/adi,ltc2947.yaml new file mode 100644 index 000000000000..6a742a51e2f9 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/adi,ltc2947.yaml @@ -0,0 +1,104 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/adi,ltc2947.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices LTC2947 high precision power and energy monitor + +maintainers: + - Nuno Sá <nuno.sa@analog.com> + +description: | + Analog Devices LTC2947 high precision power and energy monitor over SPI or I2C. + + https://www.analog.com/media/en/technical-documentation/data-sheets/LTC2947.pdf + +properties: + compatible: + enum: + - adi,ltc2947 + + reg: + maxItems: 1 + + clocks: + description: + The LTC2947 uses either a trimmed internal oscillator or an external clock + as the time base for determining the integration period to represent time, + charge and energy. When an external clock is used, this property must be + set accordingly. + maxItems: 1 + + adi,accumulator-ctl-pol: + description: + This property controls the polarity of current that is accumulated to + calculate charge and energy so that, they can be only accumulated for + positive current for example. Since there are two sets of registers for + the accumulated values, this entry can also have two items which sets + energy1/charge1 and energy2/charger2 respectively. Check table 12 of the + datasheet for more information on the supported options. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + - minItems: 2 + maxItems: 2 + items: + enum: [0, 1, 2, 3] + default: 0 + + adi,accumulation-deadband-microamp: + description: + This property controls the Accumulation Dead band which allows to set the + level of current below which no accumulation takes place. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 255 + default: 0 + + adi,gpio-out-pol: + description: + This property controls the GPIO polarity. Setting it to one makes the GPIO + active high, setting it to zero makets it active low. When this property + is present, the GPIO is automatically configured as output and set to + control a fan as a function of measured temperature. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + default: 0 + + adi,gpio-in-accum: + description: + When set, this property sets the GPIO as input. It is then used to control + the accumulation of charge, energy and time. This function can be + enabled/configured separately for each of the two sets of accumulation + registers. Check table 13 of the datasheet for more information on the + supported options. This property cannot be used together with + adi,gpio-out-pol. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32-array + - minItems: 2 + maxItems: 2 + items: + enum: [0, 1, 2] + default: 0 + +required: + - compatible + - reg + + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + ltc2947_spi: ltc2947@0 { + compatible = "adi,ltc2947"; + reg = <0>; + /* accumulation takes place always for energ1/charge1. */ + /* accumulation only on positive current for energy2/charge2. */ + adi,accumulator-ctl-pol = <0 1>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/hwmon/ads1015.txt b/Documentation/devicetree/bindings/hwmon/ads1015.txt deleted file mode 100644 index 918a507d1159..000000000000 --- a/Documentation/devicetree/bindings/hwmon/ads1015.txt +++ /dev/null @@ -1,73 +0,0 @@ -ADS1015 (I2C) - -This device is a 12-bit A-D converter with 4 inputs. - -The inputs can be used single ended or in certain differential combinations. - -For configuration all possible combinations are mapped to 8 channels: - 0: Voltage over AIN0 and AIN1. - 1: Voltage over AIN0 and AIN3. - 2: Voltage over AIN1 and AIN3. - 3: Voltage over AIN2 and AIN3. - 4: Voltage over AIN0 and GND. - 5: Voltage over AIN1 and GND. - 6: Voltage over AIN2 and GND. - 7: Voltage over AIN3 and GND. - -Each channel can be configured individually: - - pga is the programmable gain amplifier (values are full scale) - 0: +/- 6.144 V - 1: +/- 4.096 V - 2: +/- 2.048 V (default) - 3: +/- 1.024 V - 4: +/- 0.512 V - 5: +/- 0.256 V - - data_rate in samples per second - 0: 128 - 1: 250 - 2: 490 - 3: 920 - 4: 1600 (default) - 5: 2400 - 6: 3300 - -1) The /ads1015 node - - Required properties: - - - compatible : must be "ti,ads1015" - - reg : I2C bus address of the device - - #address-cells : must be <1> - - #size-cells : must be <0> - - The node contains child nodes for each channel that the platform uses. - - Example ADS1015 node: - - ads1015@49 { - compatible = "ti,ads1015"; - reg = <0x49>; - #address-cells = <1>; - #size-cells = <0>; - - [ child node definitions... ] - } - -2) channel nodes - - Required properties: - - - reg : the channel number - - Optional properties: - - - ti,gain : the programmable gain amplifier setting - - ti,datarate : the converter data rate - - Example ADS1015 channel node: - - channel@4 { - reg = <4>; - ti,gain = <3>; - ti,datarate = <5>; - }; diff --git a/Documentation/devicetree/bindings/hwmon/as370.txt b/Documentation/devicetree/bindings/hwmon/as370.txt new file mode 100644 index 000000000000..d102fe765124 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/as370.txt @@ -0,0 +1,11 @@ +Bindings for Synaptics AS370 PVT sensors + +Required properties: +- compatible : "syna,as370-hwmon" +- reg : address and length of the register set. + +Example: + hwmon@ea0810 { + compatible = "syna,as370-hwmon"; + reg = <0xea0810 0xc>; + }; diff --git a/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt index f68a0a68fc52..d9a2719f9243 100644 --- a/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt +++ b/Documentation/devicetree/bindings/hwmon/ibm,cffps1.txt @@ -1,8 +1,13 @@ -Device-tree bindings for IBM Common Form Factor Power Supply Version 1 ----------------------------------------------------------------------- +Device-tree bindings for IBM Common Form Factor Power Supply Versions 1 and 2 +----------------------------------------------------------------------------- Required properties: - - compatible = "ibm,cffps1"; + - compatible : Must be one of the following: + "ibm,cffps1" + "ibm,cffps2" + or "ibm,cffps" if the system + must support any version of the + power supply - reg = < I2C bus address >; : Address of the power supply on the I2C bus. diff --git a/Documentation/devicetree/bindings/hwmon/lm75.txt b/Documentation/devicetree/bindings/hwmon/lm75.txt index 586b5ed70be7..273616702c51 100644 --- a/Documentation/devicetree/bindings/hwmon/lm75.txt +++ b/Documentation/devicetree/bindings/hwmon/lm75.txt @@ -15,6 +15,7 @@ Required properties: "maxim,max31725", "maxim,max31726", "maxim,mcp980x", + "nxp,pct2075", "st,stds75", "st,stlm75", "microchip,tcn75", diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/ti,ucd90320.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/ti,ucd90320.yaml new file mode 100644 index 000000000000..5d42e1304202 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/pmbus/ti,ucd90320.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- + +$id: http://devicetree.org/schemas/hwmon/pmbus/ti,ucd90320.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: UCD90320 power sequencer + +maintainers: + - Jim Wright <wrightj@linux.vnet.ibm.com> + +description: | + The UCD90320 is a 32-rail PMBus/I2C addressable power-supply sequencer and + monitor. The 24 integrated ADC channels (AMONx) monitor the power supply + voltage, current, and temperature. Of the 84 GPIO pins, 8 can be used as + digital monitors (DMONx), 32 to enable the power supply (ENx), 24 for + margining (MARx), 16 for logical GPO, and 32 GPIs for cascading, and system + function. + + http://focus.ti.com/lit/ds/symlink/ucd90320.pdf + +properties: + compatible: + enum: + - ti,ucd90320 + + reg: + maxItems: 1 + +required: + - compatible + - reg + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + ucd90320@11 { + compatible = "ti,ucd90320"; + reg = <0x11>; + }; + }; diff --git a/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml b/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml new file mode 100644 index 000000000000..168235ad5d81 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/ti,tmp513.yaml @@ -0,0 +1,93 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- + +$id: http://devicetree.org/schemas/hwmon/ti,tmp513.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TMP513/512 system monitor sensor + +maintainers: + - Eric Tremblay <etremblay@distech-controls.com> + +description: | + The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors + that include remote sensors, a local temperature sensor, and a high-side + current shunt monitor. These system monitors have the capability of measuring + remote temperatures, on-chip temperatures, and system voltage/power/current + consumption. + + Datasheets: + http://www.ti.com/lit/gpn/tmp513 + http://www.ti.com/lit/gpn/tmp512 + + +properties: + compatible: + enum: + - ti,tmp512 + - ti,tmp513 + + reg: + maxItems: 1 + + shunt-resistor-micro-ohms: + description: | + If 0, the calibration process will be skiped and the current and power + measurement engine will not work. Temperature and voltage measurement + will continue to work. The shunt value also need to respect: + rshunt <= pga-gain * 40 * 1000 * 1000. + If not, it's not possible to compute a valid calibration value. + default: 1000 + + ti,pga-gain: + description: | + The gain value for the PGA function. This is 8, 4, 2 or 1. + The PGA gain affect the shunt voltage range. + The range will be equal to: pga-gain * 40mV + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 4, 8] + default: 8 + + ti,bus-range-microvolt: + description: | + This is the operating range of the bus voltage in microvolt + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + enum: [16000000, 32000000] + default: 32000000 + + ti,nfactor: + description: | + Array of three(TMP513) or two(TMP512) n-Factor value for each remote + temperature channel. + See datasheet Table 11 for n-Factor range list and value interpretation. + allOf: + - $ref: /schemas/types.yaml#definitions/uint32-array + - minItems: 2 + maxItems: 3 + items: + default: 0x00 + minimum: 0x00 + maximum: 0xFF + +required: + - compatible + - reg + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + tmp513@5c { + compatible = "ti,tmp513"; + reg = <0x5C>; + shunt-resistor-micro-ohms = <330000>; + ti,bus-range-microvolt = <32000000>; + ti,pga-gain = <8>; + ti,nfactor = <0x1 0xF3 0x00>; + }; + }; |
